Log Number: P5
Abstract Submitted to the    NANOTUBE'04 Conference:

Random telegraph signal in carbon nanotube peapods

S. H. Jhang1, S. W. Lee1, D. S. Lee1, Y. W. Park1, M. S. Kabir2, M. Sveningsson2, E. E. B Campbell2, Urszula Dettlaff-Weglikowska3, Siegmar Roth3, G. –H. Jeong4, T. Hirata4 and R. Hatakeyama4

1School of Physics, Seoul National University, 151-747 Seoul, Korea;
2Department of Experimental Physics, Chalmers University of Technology SE-41296 Gothenburg, Sweden;
3Max-Planck Institute for Solid State Research, Heisenbergstr. 1, D-70569 , Stuttgart, Germany,
4Department of Electronic Engineering, Tohoku University, Sendai 980-8579, Japan
Contact e-mail: ywpark@phya.snu.ac.kr

The switching of resistance between two discrete values, known as random telegraph signal (RTS), was observed in carbon nanotube, C60 peapod and Cs-encapsulated peapod. The average times in high-current and low-current states, thigh and tlow, has been studied as a function of gate voltage and temperature as well as bias voltage. Since the carbon nanotube is an one dimensional system which has very narrow current path, the observed RTS could be originated from the trap state in carbon nanotubes.

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